Docker installation

Please follow the instructions you found here. Then continue the Post-installation steps for Linux. The last chapter Configure default logging driver isn't necessary.

After the installation, you need to login to the github registry in order to get the available packages.

docker login ghcr.io --username <github-username>

The used token needs the read:packagesscope at least. If you want to upload packages your token needs write:pakagesscope also.